Used as a fluorescent probe in biochemical and analytical applications due to its strong fluorescence properties. It serves as a key intermediate in the synthesis of anticoagulant drugs and other coumarin-derived pharmaceuticals. Also employed in the development of optical brighteners and laser dyes. Its derivatives are investigated for antioxidant, antimicrobial, and anticancer activities. Commonly utilized in sensors for detecting metal ions and biomolecules because of its sensitivity to environmental changes.